CareFusion SpiroUSB
CareFusion · Model SpiroUSB
SpiroUSB works in just 3 easy steps: Plug in your computer to launch SPCS, click new examination, and blow into the SpiroUSB and view results. SpiroUSB performs open and closed-loop spirometry, pre- and post-bronchodilator testing, incentive spirometry and trending facilities. The databases can be exported for further individual reporting. Simple calibration/verification. Fully compliant to ATS/ERS 2005 standards. Fully configurable windows and settings, allowing up to 41 indices to be selected, including a choice of predicted values and languages. Large patient database allows results to be saved or transferred as if required. Full flow volume and volume time curves for onscreen inspection of manoeuvers and internationally recognized, on-screen test quality prompts.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Flow / volume accuracy check fails
HighSymptoms: 3-litre syringe calibration verification outside tolerance, questionable FEV1/FVC.
Root cause: Physically damaged or contaminated volume transducer, or debris / moisture in the flow path.
No connection to the PC
MediumSymptoms: Spirometry PC software does not see the device, no data.
Root cause: USB cable, port, or driver fault.
Transducer contamination / cross-infection risk
MediumSymptoms: Drifting results, visible soiling in the flow head.
Root cause: Reusable transducer needs cleaning, or a disposable mouthpiece reused.
Mouthpiece / adaptor fit fault
LowSymptoms: Air leak at the mouthpiece, low readings.
Root cause: Worn mouthpiece adaptor or transducer O-ring.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Reusable volume transducer
Calibration is stable unless the transducer is physically damaged.
Class Periodic replacementRel. cost $$R&R Easy
Disposable mouthpieces / bacterial filters
Class ConsumableRel. cost $R&R Easy
USB cable
Class Periodic replacementRel. cost $R&R Easy
Transducer O-ring / adaptor
Class Periodic replacementRel. cost $R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Reusable volume transducer Calibration is stable unless the transducer is physically damaged. | Periodic replacement | $$ | Easy |
| Disposable mouthpieces / bacterial filters | Consumable | $ | Easy |
| USB cable | Periodic replacement | $ | Easy |
| Transducer O-ring / adaptor | Periodic replacement | $ | Easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Calibration verification fails
- Fit a clean transducer and a fresh mouthpiece and dry the flow path.
- Set up an FVC manoeuvre and inject the 3-litre syringe volume evenly with the minimum of adaptors.
- Repeat at varied speeds.
- If it still fails, the transducer is likely damaged - replace it.
- Re-verify and record the check.
Symptom: No PC connection
- Confirm the software is installed and the device driver loaded.
- Try another USB port and cable.
- Check Device Manager / system for the device.
- Reinstall the software if needed.
- Re-test with a known-good PC.